“…172 Anorexia It is acknowledged that apparently normal dietary intake in COPD patients may be insufficient to meet elevated energy requirements, but reduced food intake may also be caused by anorexia, that is, loss of appetite. 190 A few underlying causes have been mentioned, including nicotine use, 191 physical discomfort such as dyspnoea and increased breathing effort, 192 depression, and anxiety, 193 seen in COPD 194 as well as in NSCLC. 195,196 Besides pulmonary and psychological symptoms, COPD patients often experience pain.…”